"Dual-energy CT imaging of aortic aneurysms can discern the difference between iodinated contrast, calcified atheroma, and previous grafts or surgical materials. Post-processing techniques can create virtual non-calcium or non-enhanced images."
"The natural history of abdominal aortic aneurysms is variable. Some small aneurysms do not appear to change, while others slowly expand and become at risk for eventual rupture 19,21. A number of clinical factors (e.g. smoking, sex, and blood pressure) are known to contribute to rupture risk. Ultimately, the primary clinical question is whether and when to intervene to avoid aortic rupture."
"Society of Vascular Surgery 2018 recommendations generally recommend intervention for AAA ≥5.4 cm and surveillance for smaller diameter lesions 19"
Expected headings
"Associations"
"end vessel infarct (e.g. renal infarct or splenic infarct)"
"presence of aberrant renal veins (e.g. retroaortic or circumaortic left renal vein)"
"most study data is based on fusiform aneurysms; it is debated whether the more uncommon saccular aneurysm is at higher risk for rupture at a smaller transverse diameter 19"